High reliability ensures best communication in security and safeguard sectors.Being safe with CommScope in any situation!

TETRA Solutions

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TETRA—Security Anywhere at AnytimeTETRA is the modern digital trunking system used for the private and public mobile radio communication (transport agencies, airports, energy companies) and for security agencies (police, fire brigades, rescue ser-vices, army). Especially users in the security areas have high requirements on the overall system. These requirements are covered in a highly reliable and cost-effective way by the Andrew Solutions TETRA coverage solu tion for RF- and opti-cal networks. Thanks to the modular design of the equipment and to an outstanding flexibility on a very service-friendly basis, tailored solutions can be provided at minimum cost.

RF Solutions with Node A Series

Uplink Downlink380—385 MHz 390—395 MHz385—390 MHz 395—400 MHz410—415 MHz 420—425 MHz415—420 MHz 425—430 MHz450—455 MHz 460—465 MHz455—460 MHz 465—470 MHz

With Andrew Solutions digital Node A RF repeaters, buildings and tunnels can be covered fast and easily with TETRA signals. A directive donor antenna usually picks-up the base station signal. The Node A digi-tally filters (band- or channel-selective) and amplifies the TETRA signal up to the desired output power (available up to 4W). The Node A usually drives a passive distribution system with radiating cable or antennas, but can also be used as a pick-up repeater for active distribution systems. All Andrew Solutions repeater and TETRA equipment provides the option for remote configuration, supervision, monitoring, and maintenance via modem connection (GSM, UMTS, CDMA, PSTN, LAN,…).

Advantages• Higher MTBF than with a TBS

(TETRA Base Station) and therefore enhanced system reliability

• No leased-line back haul network and network infrastructure necessary

• Flexible use (easy installation and operation)

• More cost-effective than numerous TBS

RF In-house Coverage

Frequency Ranges at a Duplexer Bandwidth of 5 MHz

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Voice & Data

SMS

A.I.M.O.S.

Alarming

&Control

MR418

TBS

Master

Unit

TETRA

Base

Station

Rx Tx

ION-M4

ION-M4

ABC

RF Solutions with MRx18 SeriesAndrew Solutions TETRA miniRepeaters extends coverage in small indoor areas with up to 2300 square meters, such as offices, shops and basements. Typically, an antenna which has been installed out-side the building receives the signal from the TBS (TETRA Base Station). The repeater boosts the signal and the indoor antenna or a distributed antenna system—consisting of several splitters and antennas—serves the TETRA signal to the desired “dark spots”. Vice versa the signal is forwarded from indoors to the TBS. Locally the TETRA miniRepeater can be moni-tored/configured via a web-based browser. Remote monitoring and configuration via SMS or A.I.M.O.S is optionally available by adding a wireless GSM modem.

• Cost-effective indoor cell enhancer

• Easy installation due to small dimensions and auto-gain functionality

• High reliability

AdvantagesUplink Downlink

380—385 MHz 390—395 MHz410—415 MHz 420—425 MHz

Frequency Ranges of miniRepeaters (Others Available on Demand)

miniRepeater Inhouse Coverage

Optical Solutions with ION™ Series The optical remote unit (RU) is connected to a mas-ter unit via optical fiber. The TBS signals are inter-faced to the master unit for electrical/optical con-version. These converted signals are transmitted via optical fiber to the remote units and finally to the antenna. By utilizing optical fiber cables, high atten-uation losses on long coaxial cables are avoided. This increases the potential distance between remote unit and master unit up to 20 km. A sub-carrier is fed into the signal path on the optical fiber to act as a remote control and supervision channel for all equipment. Due to the modular concept later expansion and upgrade is possible. System redun-dancy can also be provided at low cost impact.

• Active units can be mounted close to the antennas due to their small size. Therefore shorter and thinner coaxial cables are used

• Optical fiber cables can be installed easier and more cost-effective because of their design

• Remote units show a considerable higher MTBF compared to a TBS. Therefore total system reliability is quite higher

Advantages

Uplink Downlink380—385 MHz 390—395 MHz385—390 MHz 395—400 MHz410—415 MHz 420—425 MHz415—420 MHz 425—430 MHz450—455 MHz 460—465 MHz455—460 MHz 465—470 MHz

Optical Coverage System

(Star-Configuration)

Frequency Ranges of Wideband Remote Units

Point-to-Point-ConfigurationEach remote unit is connected to one optical fiber. One single fiber supports uplink and downlink at the same time. This configuration gives the best interference immunity and reliability, assuming the number of fibers is sufficient.

Star-Configuration A number of remote units is connected via an optical splitter to the same optical transceiver (OTRx) in the master unit. Up to 4 remote units can be connected to a single OTRx while the maximum optical budget is 10 dB.

Backbone-Configuration In many situations optical fiber is the limited and most valuable resource. In this case the backbone feature provides the option of connecting up to 4 remote units to only one single optical fiber. The maximum optical loss of 10 dB must not exceed.

RU

RUMaster

Unit

TETRA

Base

Station

Rx Tx

Master

Unit

TETRA

Base

Station

Rx Tx

RU

RU

RU

RU

RU

RU

Master

Unit

RURURadiating Cable

Configurations

Network Redundancy Is ensured by a special network topology where two independent networks interleave in a way that in case of a failure each of them could carry the traffic load.

Redundancy Scenarios

Equipment Redundancy Is ensured by a special distribution network topology where coverage is even guaranteed in case of fibre break, optical link fail or remote unit fail.

Module Redundancy Is ensured by doubling critical modules inside the network elements of the distribution network e.g. doubling the power amplifier and /or the power supply inside a unit.

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All trademarks identified by ® or ™ are registered trademarks or trademarks, respectively, of CommScope, Inc. This document is for planning purposes only and is not intended to modify or supplement any specifications or warran-ties relating to CommScope products or services.

BR-102188.6-EN.GB (08/16)